Hello Amy, sorry for replying late. You've already written and submitted an Imayo that I'll read now :) To explain you a bit on the pattern rhyming:-
For example if the rhyming pattern says- ababbccdcd
That means lines 1 and 3 should rhyme with one another, and lines 2,4 and 5 should rhyme and likewise. Basically, the alphabets signifies the lines in the poem, and same alphabets mean those two lines should rhyme with one another.
That's all about it. I hope this is clear but in case it is not please do let me know, I will try to help again! Please do let me know in case of any other questions too :)